Multi-Tray Epitaxial Reactor Layout for Uniform Heating
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Solution Overview
Problem
Conventional epitaxial growth devices have limited efficiency and quality due to non-uniform temperature distribution and inability to independently control the rotation of multiple trays, leading to irregular quality of epitaxial layers in a batch.
Innovation Solution
The epitaxial growth device features a heating base with multiple independent workspaces and trays that can rotate independently, allowing for precise control of environmental parameters and rotation rates to ensure uniformity in epitaxial layer production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple trays are disposed in one workspace to improve output, then productivity increases, but temperature uniformity deteriorates and rotation control precision deteriorates
Solution Approach 1:
The device divides a single workspace into multiple independent workspaces, with each workspace containing its own tray. This segmentation allows each tray to be independently controlled for rotation speed and environmental parameters, while still maintaining high productivity through parallel processing of multiple substrates simultaneously.
2Productivity
If multiple trays share one workspace to improve output, then productivity increases, but temperature balance deteriorates
Solution Approach 1:
The heating system is segmented into multiple independent heating zones, with each workspace having its own heating control. This allows independent temperature regulation in each workspace, ensuring temperature balance is maintained even when multiple trays are operating simultaneously, thereby resolving the conflict between productivity and temperature uniformity.
3Productivity
If multiple trays are disposed in one workspace, then productivity increases, but rotation control independence deteriorates
Solution Approach 1:
The rotation control system is segmented to provide independent rotation control for each tray. Each tray can be rotated at different speeds and directions independently, allowing precise control of deposition processes for each substrate while maintaining high productivity through parallel operation of multiple trays in separate workspaces.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration enhances production efficiency, improves the quality and uniformity of epitaxial layers, and reduces temperature differences between workspaces, ensuring consistent output in each batch.
Implementation Method 1
an induction coil and a reaction body, and the induction coil is disposed along a circumferential direction of the reaction body
Implementation Method 2
the induction coil is disposed along a circumferential direction of the reaction body... heating base includes a plurality of workspaces
Data Source
AI summary
An epitaxial growth device is provided, which includes an induction coil and a reaction body, and the induction coil is disposed along a circumferential direction of the reaction body; and the reaction body includes a heating base and a plurality of trays, wherein the heating base includes a plurality of workspaces, the plurality of trays are disposed in the plurality of workspaces, respectively, and each of the plurality of trays is disposed in a corresponding workspace; wherein each of the plurality of trays is configured to support a substrate, and each of the plurality of trays is capable of independently rotating relative to the heating base.